The motor effect

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Question 17
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Figure 1 shows a conducting metal bar resting on two parallel brass rails, completing an electrical circuit. The bar is positioned in a uniform magnetic field.

A 3D schematic showing two horizontal, parallel brass rails passing between the poles of a large magnet. A cylindrical conducting metal bar rests transversely across both rails, completing an electrical circuit. Labels show the current flowing into one rail, across the bar, and out of the other rail. Use of a magnet is shown with North and South poles creating a vertical magnetic field.

The magnetic flux density of the magnetic field at the bar is 0.60 T.

The current flowing through the bar is 1.5 A.

The length of the bar carrying the current within the magnetic field is 0.080 m.

Calculate the force acting on the bar.

Use the equation:

F=B×I×l F = B \times I \times l F=B×I×l
[2]

The motor effect Questions

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